{"id":"vidhyamitra:city-day:rishikesh:2018-02-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2018-02-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-02-10","date_display":"February 10, 2018 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2018,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458159.770833,"kali_year":5119,"ahargana":1869694.2708,"sun":{"sidereal_longitude":297.1652,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":231.0503,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":293.885,"elapsed_within_tithi_degrees":5.885},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":231.0503,"elapsed_within_degrees":4.3836},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.2155},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2018,"month":2,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458159.770833,"ahargana":1869694.2708,"kali_year":5119,"ayanamsa_lahiri":24.106,"grahas":{"sun":{"sidereal_longitude":297.135277,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":233.448577,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":4.0281},"mars":{"sidereal_longitude":224.46917699999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":291.30967699999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":207.77627699999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":304.501477,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":251.47137699999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":114.5999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":294.5999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2018,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458159.770833,"kali_year":5119,"ahargana":1869694.2708,"sun":{"sidereal_longitude":297.1652,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":231.0503,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":293.885,"elapsed_within_tithi_degrees":5.885},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":231.0503,"elapsed_within_degrees":4.3836},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.2155},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.028,"elongation":66.115},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.028,"opposition_distance":113.885}},"eclipse_window_40days":[{"offset_days":6,"type":"solar","occurs":true,"moon_latitude":-0.855,"elongation":1.98}]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"07:02","sunsetLocal":"18:01","solarNoonLocal":"12:31","dayLengthHours":10.99168055952234,"dayLengthDisplay":"10 Hours 59 Mins 30 Secs","nightLengthDisplay":"13 Hours 00 Mins 30 Secs","moonriseLocal":"03:10","moonsetLocal":"13:23","rahuKala":{"name":"Rāhu Kāla","start":"09:47","end":"11:09","startHours":9.776684618311485,"endHours":11.150644688251777,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:16","startHours":13.898564828132361,"endHours":15.272524898072657,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:02","end":"08:24","startHours":7.0287644784309,"endHours":8.402724548371193,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:58","startHours":9.593489942319446,"endHours":9.959879294303525,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:47","startHours":7.486751168410997,"endHours":7.779862649998259,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:53","startHours":12.158215406207994,"endHours":12.890994110176148,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:34","end":"06:18","startHours":5.563207070494588,"endHours":6.295985774462744,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"07:02","startHours":6.112791098470705,"endHours":7.0287644784309,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:05","startHours":14.356551518112461,"endHours":15.089330222080617,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.82044503795324,"endHours":18.22044503795324,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:29","startHours":18.02044503795324,"endHours":18.478431727933337,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.77044503795324,"endHours":19.52044503795324,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:53","startHours":24.15821540620799,"endHours":24.89099411017615,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:02","end":"08:24","startHours":7.0287644784309,"endHours":8.402724548371193,"quality":"inauspicious"},{"name":"Śubha","start":"08:24","end":"09:47","startHours":8.402724548371193,"endHours":9.776684618311485,"quality":"auspicious"},{"name":"Roga","start":"09:47","end":"11:09","startHours":9.776684618311485,"endHours":11.150644688251777,"quality":"inauspicious"},{"name":"Udveg","start":"11:09","end":"12:31","startHours":11.150644688251777,"endHours":12.52460475819207,"quality":"inauspicious"},{"name":"Chala","start":"12:31","end":"13:54","startHours":12.52460475819207,"endHours":13.898564828132361,"quality":"neutral"},{"name":"Labha","start":"13:54","end":"15:16","startHours":13.898564828132361,"endHours":15.272524898072657,"quality":"auspicious"},{"name":"Amṛta","start":"15:16","end":"16:39","startHours":15.272524898072657,"endHours":16.64648496801295,"quality":"auspicious"},{"name":"Kāla","start":"16:39","end":"18:01","startHours":16.64648496801295,"endHours":18.02044503795324,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:01","end":"19:39","startHours":18.02044503795324,"endHours":19.64648496801295,"quality":"auspicious"},{"name":"Amṛta","start":"19:39","end":"21:16","startHours":19.64648496801295,"endHours":21.272524898072657,"quality":"auspicious"},{"name":"Kāla","start":"21:16","end":"22:54","startHours":21.272524898072657,"endHours":22.898564828132365,"quality":"inauspicious"},{"name":"Śubha","start":"22:54","end":"00:31","startHours":22.898564828132365,"endHours":24.52460475819207,"quality":"auspicious"},{"name":"Roga","start":"00:31","end":"02:09","startHours":24.52460475819207,"endHours":26.15064468825178,"quality":"inauspicious"},{"name":"Udveg","start":"02:09","end":"03:47","startHours":26.15064468825178,"endHours":27.776684618311485,"quality":"inauspicious"},{"name":"Chala","start":"03:47","end":"05:24","startHours":27.776684618311485,"endHours":29.402724548371193,"quality":"neutral"},{"name":"Labha","start":"05:24","end":"07:02","startHours":29.402724548371193,"endHours":31.0287644784309,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:02","end":"08:02","startHours":7.0287644784309,"endHours":8.028764478430901,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:02","end":"09:02","startHours":8.028764478430901,"endHours":9.028764478430901,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:02","end":"10:02","startHours":9.028764478430901,"endHours":10.028764478430901,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:02","end":"11:02","startHours":10.028764478430901,"endHours":11.028764478430901,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:02","end":"12:02","startHours":11.028764478430901,"endHours":12.028764478430901,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:02","end":"13:02","startHours":12.028764478430901,"endHours":13.028764478430901,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:02","end":"14:02","startHours":13.028764478430901,"endHours":14.028764478430901,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:02","end":"15:02","startHours":14.028764478430901,"endHours":15.028764478430901,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:02","end":"16:02","startHours":15.028764478430901,"endHours":16.0287644784309,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:02","end":"17:02","startHours":16.0287644784309,"endHours":17.0287644784309,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:02","end":"18:02","startHours":17.0287644784309,"endHours":18.0287644784309,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:02","end":"19:02","startHours":18.0287644784309,"endHours":19.0287644784309,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:02","end":"20:02","startHours":19.0287644784309,"endHours":20.0287644784309,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:02","end":"21:02","startHours":20.0287644784309,"endHours":21.0287644784309,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:02","end":"22:02","startHours":21.0287644784309,"endHours":22.0287644784309,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:02","end":"23:02","startHours":22.0287644784309,"endHours":23.0287644784309,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:02","end":"00:02","startHours":23.0287644784309,"endHours":24.0287644784309,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:02","end":"01:02","startHours":24.0287644784309,"endHours":25.0287644784309,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:02","end":"02:02","startHours":25.0287644784309,"endHours":26.0287644784309,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:02","end":"03:02","startHours":26.0287644784309,"endHours":27.0287644784309,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:02","end":"04:02","startHours":27.0287644784309,"endHours":28.0287644784309,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:02","end":"05:02","startHours":28.0287644784309,"endHours":29.0287644784309,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:02","end":"06:02","startHours":29.0287644784309,"endHours":30.0287644784309,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:02","end":"07:02","startHours":30.0287644784309,"endHours":31.0287644784309,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-14.418185767647872,"eotMinutes":-14.546685491524224,"ayanamsa":24.106}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Daśamī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 10, 2018 CE · Ṛṣikeśa · Vidhyamitra","description":"February 10, 2018 CE for Ṛṣikeśa: Kṛṣṇa Daśamī, sūryodaya 07:02, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2018-02-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2018-02-10","sa":"https://sa.vidhyamitra.com/city/rishikesh/2018-02-10","hi":"https://hi.vidhyamitra.com/city/rishikesh/2018-02-10","x-default":"https://vidhyamitra.com/city/rishikesh/2018-02-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T11:13:51.926Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-15T11:13:51.926Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T11:13:51.926Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}